File Progress stops at 91% but file completes

File Progress stops at 91% but file completes

Great extension, but it seems to have problems updating the progress on files sometimes (reproducible but not consistently).

I try uploading 3 files and one out of the three 80% of the time will complete with its progress showing 91% complete even though the file completely uploads and the page returns a successful json string back. I have had this occur in Chrome and Firefox.